Power Systems A loss less transmission line has a length of 600 km, find the phase shift of voltage signal? 42° 90° 45° 36° 42° 90° 45° 36° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which device is used for protection of equipment from from damage caused by overload or short circuit? lightning arrester circuit breaker CVT current transformer lightning arrester circuit breaker CVT current transformer ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠90° Ω, C = 0.5*10-6∠90° ℧. Find the no load receiving end voltage? 500 kV 600 kV 400 kV 320 kv 500 kV 600 kV 400 kV 320 kv ANSWER DOWNLOAD EXAMIANS APP
Power Systems The value of off diagonal elements is sum of admittances connected at bus i sum of admittances connected at bus j which is connected between bus i and bus j with positive sign which is connected between bus i and bus j with negative sign sum of admittances connected at bus i sum of admittances connected at bus j which is connected between bus i and bus j with positive sign which is connected between bus i and bus j with negative sign ANSWER DOWNLOAD EXAMIANS APP
Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is 10 6 2 16 10 6 2 16 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of pumped storage plants is/are most economical as a peak load supply plant All of these operating time is minimum used as load frequency control most economical as a peak load supply plant All of these operating time is minimum used as load frequency control ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS